from tkinter import *

N = int(input('вв.ч.'))
X = int(input('вв.ч.'))
Y = int(input('вв.ч.'))

coords = [0,0,10,0,10,10,20,10,20,20,10,20,10,30,0,30]

if N == 0 and X>=0 and x<=500 and  Y>=0 and Y<=500:
    
    pass

else:
    
    if N > 0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 20*N+Y<=500:
        pass
    else:
        if N < 0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 20*N+Y<=500:
            pass
        else:
            print('Размер фигуры превышает максимальный размер поля')
            exit()
root = Tk()
root.title ('ИТ марафон')
root.geometry('500x500')
canvas = Canvas(bg='white',width=500,height=500)
canvas.pack (anchor=CENTER, expand=1)
canvas.create_polygon(coords[0] *N+X, coords[1] *N+Y,
                      coords[2] *N+X, coords[3] *N+Y,
                      coords[4] *N+X, coords[5] *N+Y,
                      coords[6] *N+X, coords[7] *N+Y,
                      coords[8] *N+X, coords[9] *N+Y,
                      coords[10] *N+X, coords[11] *N+Y,
                      coords[12] *N+X, coords[13] *N+Y,
                      coords[14] *N+X, coords[15] *N+Y)
root.mainloop()
